Aluminium strut profile 45x45 slot 10 3842990520

AL Modular System · C10 profiles

Aluminium strut profile 45x45 – slotted profile with slot 10 for frames and benches

The 45x45 is the solid profile of the 45 series in the Bosch Rexroth modular aluminium system: one 10 mm slot on each side, with the “heavy” geometry designed for highly loaded connections, including dynamic loads. At 2.0 kg/m and Ix = Iy = 13.8 cm⁴ it is stiffer than the lightened 45x45L: use it for uprights and crossbars of support frames, workbenches, trolleys and guards. Order it as a 6070 mm bar or cut to length.

Section 45 × 45 mm10 mm slot2.0 kg/mIx = Iy 13.8 cm⁴Central bore M12/M16

13,8 cm⁴Ix = Iy

2,0 kg/mweight

6070 mmbar, usable length

4 × 10 mmslots

Why choose it

Sturdy slot

The heavy slot geometry supports high-strength connections, even under dynamic loads.

Four usable sides

One 10 mm slot on each side: fix brackets, panels and accessories where needed, without drilling.

Machinable central bore

At the end you can have an M12 or M16 thread for levelling feet, central bolts and end connectors.

Bar or cut to size

6070 mm bar of usable length or pieces cut to your dimensions, from 50 mm upwards.

Choose it if…

You build machine frames, benches or trolleys that carry high or dynamic loads.
You work in the 45 series and want the full range of brackets, connectors and accessories.
You need a central bore that can be threaded M12 or M16 for feet and central bolts.
For the same footprint you prefer the solid profile to the lightened one.

Choose another solution if…

The structure carries normal loads and you want less weight, 1.6 kg/m instead of 2.0: Aluminium strut profile 45x45L →
You have long or loaded crossbars: the 45x90 mounted upright has Ix 124.6 cm⁴: Aluminium strut profile 45x90 →
You want a more compact profile, in the 40 series: Aluminium strut profile 40x40L →

Not sure which profile to choose? Open the guide with the profile table →

How to use it in the structure

Three practical rules for the 45x45:

The span matters

Deflection grows with the cube of the span: if you double the distance between supports, the crossbar deflects eight times more.

End machining

M12 thread: minimum length 60 mm on one end and 110 mm on both; with M16 on one end 120 mm is required.

Move to a tall section

For long crossbars the 45x90 mounted upright has an Ix nine times higher, with the same width.

The rigidity of the structure also depends on joints and supports: we carry out the verification on your drawing.

The LeanProducts service

Original components and a single point of contact, from drawing to kit:

Cutting to length

We cut the profiles in our workshop to the lengths in your parts list.

Parts list check

We start from the parts list or sketch: we check codes, quantities and connection accessories.

Ready-to-assemble kits

You receive cut profiles, brackets, nuts and cover caps grouped for your structure.

Spare parts

When you modify or extend the structure we supply profiles and components from the same system.

Send us a sketch with the overall dimensions: we reply with codes, accessories and cut lengths.

Technical data

Property	Value
Code	3842990520
Section	45 × 45 mm
Slot	10 mm (C10)
Cross-sectional area	A = 7.5 cm²
Weight	2.0 kg/m
Moment of inertia	Ix 13.8 cm⁴ · Iy 13.8 cm⁴
Section modulus	Wx 6.1 cm³ · Wy 6.1 cm³
Torsion	It 2.65 cm⁴ · Wt 0.96 cm³
Bar length	6070 mm (usable length) or cut to length
Minimum cut length	50 mm
Alloy and finish	EN AW-6063 (AlMgSi), extruded, anodised E6/EV1 12 µm (300 HV)
Mechanical properties	Rm 245 N/mm² · Rp0.2 195 N/mm² · E 70 000 N/mm² · 75 HB
Tolerances	Straightness max 0.75 mm/m · torsion max 0.70 mm/m
Cover cap	Cover cap for profile 45x45 in PP, grey or black ESD
Series	45 series (45 mm modular dimension)
Slot geometry	Heavy, for high-strength connections
Standard machining	M12 or M16 thread in the central bores, D9.8 and D17 holes for connectors; profile machined up to 6000 mm
Packaging	Single bar or pack of 20 bars

The bar has the stated usable length: the physical piece is about 100 mm longer, because the anodising contact points remain at the ends.

Downloads

MGE catalogue pages 15 Download PDF

Any other questions?Read the 18 FAQs →

Need help with your profile parts list?

Send us a sketch or the parts list: we will give you codes, accessories and cut lengths.

Request a quote Call +39 0434 572757

Specifications

Brand	Bosch Rexroth
Section mm	45x45
Slot mm	10
Cross-section area cm²	7.5
Moment of inertia Ix / Iy cm⁴	13.8 / 13.8
Section modulus Wx / Wy cm³	6.1 / 6.1
Max length mm	6070
Alloy	EN AW-6063 (Al MgSi)
Production method	Extrusion
Surface treatment	Anodising E6/EV1, 12 µm, 300 HV
Coefficient of thermal expansion	23.4 × 10⁻⁶ 1/K (+20…100 °C)
Tensile strength	245 N/mm²
Yield strength	195 N/mm²
Elongation at break	10%
Modulus of elasticity E	70000 N/mm²
Brinell hardness	75 HB
Straightness tolerance	max 0.75 mm/m
Torsion tolerance	max 0.70 mm/m
Torsion factor It cm⁴	2.65
Torsion factor Wt cm³	0.96
Min length mm	50
Length	6070
Weight	2.0 kg/m
Material	Anodized aluminium

The 45x45 weighs 2.0 kg/m, has Ix = Iy = 13.8 cm⁴ and heavy-geometry slots, for highly loaded connections. The 45x45L weighs 1.6 kg/m and has 11.7 cm⁴: it uses less material and suits benches, guards and frames with normal loads. Footprint, slots, brackets and cover caps are the same.

The 45x45L weighs 1.6 kg/m and has Ix = Iy = 11.7 cm⁴; the solid 45x45 weighs 2.0 kg/m, has 13.8 cm⁴ and the heavy-geometry slot for highly loaded connections. Footprint, slots and accessories are the same: you can use them together in the same structure.

When the 45x45 deflects too much but the 45x90 is larger than necessary: the 45x60 has Ix 37.2 cm⁴ and weighs 3.0 kg/m, compared with 13.8 and 2.0 for the 45x45 and 124.6 and 4.2 for the 45x90.

The 50x50L has a 50 mm grid, Ix 21.2 cm⁴ and 2.5 kg/m; the 45x45 has a 45 grid, 13.8 cm⁴ and 2.0 kg/m. Brackets, connectors and cover caps are chosen by series size: do not mix 45 and 50 in the same structure without checking the connections.

The 45x45 has Ix = Iy = 13.8 cm⁴ and weighs 2.0 kg/m; the 22.5x45 has Ix = 7.1 cm⁴, Iy = 2.9 cm⁴ and weighs 1.3 kg/m. Choose the 22.5x45 for bands and slim frames, the 45x45 for posts and cross members carrying loads.

An example: 1000 mm span, crossbar supported at the ends and 500 N at the centre. The theoretical deflection is about 1.1 mm (E = 70 000 N/mm², Ix = 13.8 cm⁴). With the same span a 45x90 mounted upright drops to about 0.12 mm. In a real structure joints and constraints also matter: for verification send us the drawing and loads.

On 45x45 and 45x45L support profiles, to fix the 22.5x45 frame profile of EcoSafe fencing to them.

The central bore is threaded M12 or M16 and takes levelling feet, central bolts and end connectors. The threaded profile is ordered as standard machining with its own code: tell us the thread and which end you need it on.

The bracket 45x45, with or without screws and nuts: it fits in the slots without machining the profile. For more heavily loaded joints there are connectors that require D17 holes in the profile: tell us the load and we will suggest the connection.

The cover cap for profile 45x45 in polypropylene, grey or black ESD. It is the same as for the 45x45L and 45x45L 2NVS.

It is the width of the profile slot and determines which accessories you use. Slot C6 (6 mm) is for 20 series profiles, C8 (8 mm) for the 30 series, C10 (10 mm) for profiles from the 40 series upwards. Nuts, screws, brackets and cover caps are chosen by slot: each accessory's product page shows the right one.

Yes. You can order the full bar or the piece cut to the length you need: we do the cutting ourselves, in our workshop. Each profile's product page shows the maximum bar length and the minimum cut length.

Look at the moments of inertia Ix and Iy: the higher they are, the less the profile deflects under load. For the same section, “L” profiles are lightened and deflect a little more. For long spans or high loads move to a larger section or a tall profile (e.g. 45x90 instead of 45x45). If you send us drawing and loads, we will check the choice.

The T-nut is inserted from the front into the slot, even in an assembled structure, and positions itself when you tighten the screw: it is the standard choice for fixing accessories. The sliding block withstands higher forces, but normally has to be inserted from the profile end before closing the frame; spring versions stay where you put them.

The simplest way is the bracket, which joins two profiles at 90° with screws and nuts in the slot, without machining. For end, T, 45° or three-way connections there are dedicated connectors, some of which require profile machining as stated on their product page.

Yes, for several accessories (for example cover caps, hinges and nuts) there are conductive ESD versions, indicated in the name or variant. Tell us which EPA area you work in and we will confirm the components to use.

On each product page you will find the MGE catalogue pages to download as PDF, with dimensioned drawings and technical data; the Specifications tab shows the data for the variant you have chosen.

Yes. Send us the parts list or a sketch with dimensions: we give you codes, quantities and cut lengths and prepare the kit with profiles already cut and the accessories.